INSTRUMENTS FOR PAINTING.
Painting upon robes or skins is accomplished by means of thin strips of wood, or sometimes of bone. Tufts of antelope hair are also used, by tying them to sticks to make a brush. This is evidently a modern innovation. Pieces of wood, one end of each chewed so as to produce a loose fibrous brush, are also used at times, as has been observed among the Titon Dakota.
The Hidatsa, Arikara, and other Northwest Indians usually employ a piece of buffalo rib, or a piece of hard wood, having somewhat of an elliptical or lozenge-shaped form. This is dipped in thin glue and a tracing is made, which is subsequently treated in a similar manner with a solution, of glue, water, and color.